The startup said on Thursday that the two new strategic investors had joined a $35 million fundraising round announced in October, increasing the total raised to $42 million. Existing investors also contributed extra funding, it said.

Roofstock said it had surpassed more than $1 billion in property transactions on its platform since its inception.

Launched in early 2016, Roofstock runs an online marketplace where retail and institutional investors can buy and sell homes in the United States occupied by renters. It also identifies local property managers to help new owners manage the homes.

It is among the cohort of startups that are using technology to simplify and expand access to real estate investing. Its investors include venture capital firms Canvas Ventures, Bain Capital Ventures and Khosla Ventures.

Roofstock says it offers a user-friendly way for investors to buy properties in cities where they do not reside without having to travel to the location and find local brokers.